“Far from being “carbon neutral,” wood-burning biomass actually emits more carbon dioxide (the primary global warming greenhouse gas) per unit of energy produced than either gas or coal. Yes, trees can grow back and reabsorb that carbon, but that growth takes many years. The most recent studies show that

The renewability of wood is also questionable, as forests would be threatened by any meaningful increase in electricity generation using biomass as fuel. Replacing just 10 percent of the coal used in Pennsylvania would require more than 12.8 million green tons of wood per year — far more than the state’s annual commercial wood harvest (about 5 million tons).”